Malicious PDF — malware analysis report

Static analysis result for SHA-256 67e2c0185d13a8df…

MALICIOUS

PDF

82.7 KB Created: 2021-05-18 15:07:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 0a498f248815ecd7a0e0d309ca390e63 SHA-1: dd388522c531adce94e40c70e32fe68c2e0479a0 SHA-256: 67e2c0185d13a8df7f7274dc1a1e5def05847b131ebf8f08c9808154a9d8b6ac
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://nipisod.ru/strik?utm_term=overeaters+anonymous+grey+sheet+food+plan PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4496360/normal_60068d6f55db1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422367/normal_6039a637c4938.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459628/normal_60225c744c732.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379984/normal_6034d44d10832.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501989/normal_5ff5042fee2b0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4377098/normal_5fcc73c44e60f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409614/normal_60125f9d43320.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474220/normal_5fd1c2d6bb1aa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490949/normal_6056c97d7ae2a.pdfIn PDF document text
    • http://redanixidofax.iblogger.org/apprendre_le_russe_lecon_7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421329/normal_604391c7da2e1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476420/normal_5ff6a3635dc68.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496571/normal_5fd7d51b84fbb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424405/normal_600a730ed8ac5.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jobizezum.epizy.com/admin_console_template.pdfIn PDF document text
    • https://s3.amazonaws.com/bezegoluzose/jenevasiwo.pdfIn PDF document text
    • https://s3.amazonaws.com/dazifozixawus/greek_and_latin_root_words_for_path.pdfIn PDF document text
    • http://kamabutexukawiv.rf.gd/cerastes_cerastes_care_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/dafumuxitupav/how_you_say_bus_driver_in_spanish.pdfIn PDF document text
    • http://binasizula.rf.gd/gukon.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eedb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEDB 5644 bytes
SHA-256: 03566a8a0df971f2b94c73583cd6aabb4a4aae3d018e936d8978c52d203d34ae
font_01_sfnt_off000101f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101F0 11460 bytes
SHA-256: 16a52fad8d9720bd979a7bdb690a0e2eedf1847316ddc27f77c7c4b215a67bee
font_02_sfnt_off00012807.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12807 16060 bytes
SHA-256: d1a84ba8f0e4a827a048d387db8dd5dae3538f1c7e72415b16af587a9947cdc7

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